docs: def _is_bval_type_a(grouped_dicoms):
      """
      Check if the bvals are stored in the first of 2 currently known ways for single frame dti
      """
      bval_tag = Tag(0x2001, 0x1003)
      bvec_x_tag = Tag(0x2005, 0x10b0)
      bvec_y_tag = Tag(0x2005, 0x10b1)
      bvec_z_tag = Tag(0x2005, 0x10b2)
      for group in grouped_dicoms:
          if bvec_x_tag in group[0] and _is_float(common.get_fl_value(group[0][bvec_x_tag])) and \
                  bvec_y_tag in group[0] and _is_float(common.get_fl_value(group[0][bvec_y_tag])) and \
                  bvec_z_tag in group[0] and _is_float(common.get_fl_value(group[0][bvec_z_tag])) and \
                  bval_tag in group[0] and _is_float(common.get_fl_value(group[0][bval_tag])) and \
                  common.get_fl_value(group[0][bval_tag]) != 0:
              return True
      return False